Home / 2,193.90-3,026.78-1,297.44

Finding the Fourth Proportional to 2,193.90, 3,026.78 and 1,297.44

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Solution

The fourth proportional to 2,193.90, 3,026.78 and 1,297.44 is: 1,789.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.90 : 3,026.78 = 1,297.44 : x
  2. Step 2: Convert to fraction form
    2,193.90/3,026.78 = 1,297.44/x
  3. Step 3: Cross multiply
    2,193.90x = 3,026.78 × 1,297.44
  4. Step 4: Simplify right side
    2,193.90x = 3,927,053.55
  5. Step 5: Solve for x
    x = 3,927,053.55/2,193.90
  6. Step 6: Final answer
    x = 1,789.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.